Getting brighter much faster than expected. Now it is so bright as 6.2 mag (Feb. 1, Chris Wyatt). It will approach to the sun down to 0.73 A.U. in March. It may brighten up to 3 mag at best. It is observable in good condition in the Southern Hemisphere. It is not observable now in the Northern Hemisphere. But it becomes observable again in May, and it keeps observable in good condition after that while fading gradually.

Now it is 6.5 mag (Feb. 1, Chris Wyatt). Although it had been brightening as expected until late December, the brightening has got slow down in January. It was expected to be a great comet of -1 mag in spring, however, it may brightens only up to 3 mag at best. In the Southern Hemisphere, it keeps observable in the low sky until mid February. In the Northern Hemisphere, it keeps unobservable for a long time until March.

It brightened up to 9.0 mag in 2012 autumn (Nov. 4, Juan Jose Gonzalez). Appearing in the morning sky in the Southern Hemisphere. It keeps observable in good condition while fading slowly after this. In the Northern Hemisphere, it is hardly observable after 2013.

Long-lost comet for almost 200 years since 1827. Finally re-discovered by Rob Matson from SWAN images of mid November. Appearing in the morning sky again in the Northern Hemisphere. Now it is very bright as 9.3 mag (Jan. 31, Carlos Labordena). In the Northern Hemisphere, it keeps observable in excellent condition while fading after this. In the Southern Hemisphere, it is only observable in low sky from February to March.

Not it is so bright as 10.5 mag (Jan. 31, Chris Wyatt). It became strongly condensed in outburst on Jan. 24. It approaches to the Sun down to 0.3 A.U. on Feb. 24. The ephemeris says it will brighten up to 7 mag. However, because the comet is small, it may be disintegrated. It locates extremely low in the Northern Hemisphere. It will be unobservable soon also in the Southern Hemisphere.

It approached to the earth down to 0.3 A.U. and brightened up to 7-8 mag from late December to early January. However, it will go away from the earth and fade out rapidly after this. It has already faded down to 12.4 mag (Jan. 28, Katsumi Yoshimoto). It is observable in good condition also in the Southern Hemisphere after this.

Now it is 11.2 mag (Jan. 20, Juan Jose Gonzalez). It is expected to be observable at 11-13 mag for a long time from 2012 summer to 2013 summer. It will be getting higher gradually in the morning sky. Finally it becomes observable also in the Northern Hemisphere.

Now it is so bright as 11.8 mag (Jan. 3, Juan Jose Gonzalez). It keeps bright as 12 mag until spring. In the Northern Hemisphere, it keeps observable in good condition until April. It is not observable now in the Southern Hemisphere. It will become observable after April, but it keeps locating low.

First return of a new periodic comet discovered in 1994. Although it had been fainter than expected, it brightened rapidly and reached up to 10.6 mag (Dec. 13, Katsumi Yoshimoto). It is bright as 11.6 mag still now (Jan. 11, Sandor Szabo). It has a large diffuse coma. It keeps locating high for a while, but it will be fading after this.

It brightened rapidly, and reached up to 12 mag in 2012. Appearing in the mornig sky again. It will be observable at 12-14 mag in good condition again in 2013. However, it locates somewhat low in the Northern Hemisphere in 2013. By the way, Juan Jose Gonzalez reported it is extremely bright as 9.6 mag on Jan. 20.

Now it is 13.3 mag (Nov. 15, Sandor Szabo). It keeps bright at 13-14 mag for a long time until 2014. It keeps observable for a long time in the Northern Hemisphere. It is not observable in the Southern Hemisphere.

Big asteroid discovered in 1906. It suddenly showed the cometary activity on Dec. 11, 2010, probably due to an impact of a small object. Now it is 11.9 mag (May 29, Marco Goiato). It has already turned to be stellar. It is not observable now.

It is expected to keep 13 mag and observable in good condition in the Northern Hemisphere for a long time from 2013 to 2014. Now it is 15.0 mag (Jan. 9, A. Novichonok). It will be observable also in the Southern Hemisphere from early December to early March, although it locates low.

Now it is bright and visible visually at 12.9 mag (Jan. 3, Chris Wyatt). It keeps 12-14 mag until February. It keeps observable in good condition in the Northern Hemisphere. In the Southern Hemisphere, it locates extremely low, and will be unobservable soon.

Now it is 14.9 mag (Jan. 5, A. Novichonok). It will be fading slowly after this. But it keeps 15 mag in 2013. It is observable in good condition in the Southern Hemisphere. It becomes observable in the extremely low sky from January to February in the Northern Hemisphere.

Now it is 14.9 mag (Jan. 11, V. Gerke, S. Plaksa, A. Novichonok). It is fainter than originally predicted by 1 mag. It will brighten up to 14 mag until spring. In the Northern Hemisphere, it keeps observable in excellent condition. In the Southern Hemisphere, it keeps locating extremely low for a while.

Now it is visible visually at 13.7 mag (Dec. 23, Juan Jose Gonzalez). It keeps 15 mag until March. In the Northern Hemisphere, it keeps observable for a long time until the comet fades out. It is not observable in the Southern Hemisphere, except for 2013 spring, but the comet locates extremely low only.

It brightened much faster than expected, and reached up to 10.0 mag in summer (Aug. 9, Juan Jose Gonzalez). Now it is fading, but it is bright as 13.8 ma still now (Jan. 11, Sandor Szabo). It keeps observable in good condition for a while after this.

Now it is 15.2 mag (Jan. 11, Sandor Szabo). Already visible visually. It is expected to be a great comet in 2013 autumn when the comet approaches to the sun down to only 0.01 A.U. It keeps visible with naked eyes from November to January, and can be extremely bright as Venus or more at the highlight. The condition is excellent in the Northern Hemisphere. It keeps observable almost all through the period of brightening, at the highlight, and of fading. The condition is not good in the Southern Hemisphere. It is not observable at all the latter part of the highlight, and it keeps low all through the period.

New bright comet discovered at 15 mag in late December. Now it is 16.4 mag (Jan. 21, K. Hills). It must have been bright as 13-14 mag and observable in good condition from spring to autumn in the Southern Hemisphere. But it was not discovered. It will be fainter than 18 mag in April, and keeps observable in good condition. It will be observable also in the Northern Hemisphere after this in the evening sky while fading gradually.

Now it is 15.6 mag (Jan. 23, W. Hasubick). It will brighten up to 12 mag from summer to autumn in 2013. In the Northern Hemisphere, it is observable only until spring when the comet brightens up to 15 mag. In the Southern Hemisphere, it keeps unobservable until August. Then it keeps observable while fading gradually.

Now it is 16.2 mag (Dec. 25, K. Hills). In the Southern Hemisphere, it will be observable at 15-16 mag in good condition for a long time until 2013 summer. It is not observable at all in the Northern Hemisphere.

Now it is 14.8 mag (Jan. 9, A. Novichonok). It keeps 15-16 mag until February. It keeps observable in good condition for a long time until the comet fades out in the Northern Hemisphere. It is not observable until 2013 summer in the Southern Hemisphere. By the way, Juan Jose Gonzalez reported it extremely bright as 10.4 mag visually on Nov. 6.

It kept as bright as 11-12 mag for a long time from 2011 autumn to 2012 spring. Now it is fading. It has already faded down to 17.0 mag (Jan. 11, V. Gerke, S. Plaksa, A. Novichonok). It keeps observable in good condition until spring while the comet will be fading gradually.

It reaches up to 15-16 mag from spring to summer. It is observable in excellent condition in the Southern Hemisphere. It locates low in the Northern Hemisphere. No observations have been reported since last September.

It was identified with an old comet discovered in 1931 by Tombaugh. It was unusually bright as 12.5 mag in 1931. Now it is 16.9 mag (Jan. 19, Y. Sugiyama). It keeps 17.5 mag until March, and keeps observable in excellent condition in the Northern Hemisphere. It locates low in the Southern Hemisphere.

It is expected to brighten up to 11 mag and become observable in excellent condition in 2014 spring. Now it is 17.9 mag (Jan. 3, Toshiyuki Takahashi). In the Northern Hemisphere, it keeps observable in good condition until early summer. It locates low in the Southern Hemisphere.

It brightened very rapidly, became much brighter than originally expected, and reached up to 11-12 mag from summer to autumn in 2012. Now it is fading. It has already faded down to 17.1 mag (Jan. 17, J. F. Soulier). It keeps high for a long time in the Northern Hemisphere. It locates very low in the Southern Hemisphere.

Peculiar asteroid moving along a cometary orbit. Now it is 17.3 mag (Dec. 6, E. Cozzi). It keeps observable at 18 mag for a long time from 2008 to 2014. It locates extremely low in the Southern Hemisphere.

Now it is 17.7 mag (Jan. 11, V. Gerke, S. Plaksa, A. Novichonok). It reached up to 17 mag in last winter between 2011 and 2012. It will be observable in good condition again at 17.5 mag in this winter.

It brightened very rapidly and unusually, and reached up to 10 mag in 2012 autumn. Now it is fading. It has already faded down to 17.0 mag (Jan. 11, A. Diepvens). .It keeps high for a long time in the Northern Hemisphere. It is not observable after this in the Southern Hemisphere.